Sash-balance.



No. 706.008. Patented Aug. 5, |902.

.|. BARRUW.

SASH BALANCE. V

(Applicution Bled July 27, 1901.)

(No Manel.)

UNITED STATES PATENT OEEiCE.

JACOB BARROW', OF WINDFALL, INDIANA.

SPECIFICATION forming part of Letters atent No. 706,008, dated August 5,1902. Application filed July 271 1901. Serial No. 69,969. (No model.)

T0 all whom it may concern:

Be it known that I, JACOB BAEROW, a citizen of the United States,residing at Windfall, in the county of Tipton and State of Indiana, haveinvented a new and useful Sash-Balance, of which the following is aspecification.

My invention is an improvement in sash balances and fasteners, and hasfor its object to provide an arrangement whereby thecounterbalancing-weights and ropes may be dispensed with. To accomplishthis object, I arrange a series of pulleys within the windowframe andupon the sashes, over and around which is passed a cord or rope that issecurely held at one end to the upper sash and adjustably connected nearits opposite end to the lower sash and by which the two sashesconnterbalance each other and may be locked to any position to whichthey are adjusted.

A further object of my invention .is to provide a lock to secure thelower end of the rope which shall be of simple construction and easyOfoperation;l and with these objects in view my invention consists inthe peculiar construction and novel combination of parts, as will behereinafter fully described in the specilcation and pointed out in theclaim, reference being had to the accompanying drawings, in Which-Figure lis a perspective view of a sashframe embodying my improvements,parts of the frame being broken away. Fig. 2 is a face view of the same.Fig. 3 is an enlarged section of the upper end of the frame, and Fig. 4is a detail view illustrating the lock.

In adapting my invention to windows it only becomes necessary to arrangea recess in the upper portion of the frame directly above the sash;otherwise the frames are' exactly as those now used when thecounterbalanceweights are omitted.

sash C is fastened a cord or rope E, which is then extended up and overthe pulley B, thence down around the pulley D', thence across the top ofthe sash and around pulley D2, when it is extended up over a pulley B',thence down around the pulley C', secured to the upper sash C, then upand over pulley B2, when it is iinally carried down to the lower sash,where it is fastened to the catch or lock F. This lock is of a peculiaryet simple construction, consisting of a U-shaped bracket F', in whichis eccentrically pivoted a block F2, having an aperture f arrangedtherein that is normally arranged on an angle to the vertical line ofthe sash. A cord Gis connected to the blocks to facilitate the operationthereof, as will appear later on.

The operation of adjusting the upper and lower sash together or ofeither sashindependent of the other is as follows: Should it be desiredto adjust the upper sash=say for ventilationntlie operating-cord G isgiven an outward pull, turning the block on its axis until the apertureattains practically a vertical position, which releases the cord, whenthe window may be adjusted as desired by reason of the cord slippingthrough the block, the sash dropping of its own weight until the cord Gis released, which permits the lock to readj ust itself and firmly holdthe cord, locking the sash in place. the lower sash it is only necessaryto pull downwardly upon the cord E, which draws the sash up to anyheight desired, and if both the upper and lower sash are to be adjustedit will not be necessary to disturb the lock F; but by raising the lowersash the upper one will drop of its own weight and take up the slack inthe rope.

The operationr of closing the sashes will be readily understood.

By reference to Fig. 4 of thedrawings the operation of the lock will bereadil understood. It will be seen that the blocly has its axial boltarranged near the upper edge theres of and the aperture arrangedbetweenthe axis and the sash. The cord is passed through the aperture from thetop and out through the bottom, and as the pull upon the cord is in anupward direction the tendency will be to revolve the block, as indicatedby arrow l, which brings `the cord protruding through Now to raise` thelower end of the block against the bracket, locking it firmly, as willbe readily understood.

Having thus fully described my invention, what I claim as new, anddesire to secure by Letters Patent, is

In a lock for sashes operated in the manner described, the combinationof a bracket, a

circular block eccentrically journaled there- -Io in, the said blockhaving an aperture which is normally arranged at an angle to theVertical line of the sashes, and a rope engaging the sashes and lockwhereby through the Weight of the upper sash the cord is held in thelock, and a cord for operating the lock, 15

substantially as shown and described.

JACOB BARROW.

Witnesses: p

LOTUS ASPY; OSCAR H. WILLrAMs.

